Shuttle-changing mechanism



Aug. 24,1926. I 1,597,124

R. G. TURNER SHUTTLE QHANGING MECHANI SM Filed Oct. 31, 1922 2 Sheets-Sheet 1 Inmrwzor lab/mm & 752776)" f mum-119s Aug. 24 1926.

R. G. TURNER SHUTTLE CHANGING MECHANISM 2 Sheets-Shet 2 Filed Oct. 31

a z w.\%%.{,\ 6 m r 3 Patented Aug. 24, 1926.

UNITED STATES rare-N oFF-icE.

nroi'rann' GREENETQAE TURNER, or: w onons'rnn; MASsAonusirr'rS, AssrGNoR T rename or MASSACHUSETTS;

enoMrro n a renownns tooirwonxs,

or WORCESTER, MASSACHUSETTS, A son- SHUT'ILE-CHANGING MECHANISM;

Application filed October 31, me. serial No. 558,116.

struction in. which all parts of the shuttle feeding mechanism remain normally at rest,

the time of shuttle transfer. V Another object is to provide an improved binder construction by which a single binder is used forboth shuttle boxes at the replenishing end of the loom g I My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention 1s shown in the drawings, in which Fig. l is a partial side elevation of a shuttle changing loom embodying my, improvements, the parts being in normal running condition; F ig; 2 is ayertical Section, taken on the line 22 .in Fig. 1; Y n

Fig. 3 is a plan view of the shuttle box andbinderj a Fig. 4 is a sectional elevation taken along the line 4-4 in Fig. 2; Y Figs. 5. and .6 are views Similar to Fig. 4 butshowing the parts in successive different 5 positions; i

,Fig; 7, 's a longitudinal sectional elevation of the clutch connection from the cam shaft, taken on the line 77 in Fig. 1;

Fig. 8 is a side elevation of the clutch disctaken along the line 8'8 of Fig. 7;

Figs. 9 and 10 are side elevationssimilar to Fig. 1 but showing the parts in successive difi'erent positions, and

Fig. 11. is adetail rear elevation looking in the direction of the arrow 11 in Fig. 9. Referring to the drawings, I have shown a loom frame 20 in which a lay is mounted on the, usual swords 21 pivoted on a rock shaft 22 (Fig. 2) in the lower portion of the frame 20. A regular shuttle box23 and an auxiliary shuttle box 24fare slidably mounted in a lay end and are sup .on a litter rod-26.. The rod is con by a give-way link 27 to the of the mechanism becoming operative only at a litter lever 28 mounted on a fixed Stud orpivot 29 on the frame 20.

, An actuating lever 30 is also pivotedoii the stud 29 and has a rearwardly extending arm 31 supporting a cam roll 32. The roll 32 is engaged by a cam 33, on, the nsualbottorn-or cam, shaft 24 and the lever 30 is thus regularly oscillated as the shaft 34 revolves. r a

A latch 35 is pivoted be the aver ao aad has an o-fi'set end 36 adapted to be projected through an opening in thelev er 30 into position to engage the under side of the lifter lever28. The position otthe latch 35 is determined by weft, detecting mechanism, not shown; when the supply of weft in a running, shuttle is substantially exhausted, the latch is moved under the lever 28 and the lifter rod 2.6 and shuttle boxes 23 and are thus raised to eject the exhausted shuttle;

A shuttle magazine 37 Fig; 1) is mounted in fixed position ont e 100m frame and a shuttle holder 38 is slidably mounted beneath the magazine 37. This holder 38 is normally positioned as indicated'gin Fig. 1., so that aspare shuttle S enters the auxiliary shuttle box 24 at each forward movementot the lay. V

dVhen a shuttle transfer. is iirdicated,the boxes start to risen as indicated in Figs. 9 5 and the shuttle S is removed in the box 24 from the holder 28; The rising movement is continued during the backward movement, of the lay and the final raised position-of the boxe s is shown Fig. 10 at which pointthe exha-usted shuttle S is ejected from the regular shuttle box 23 andthe new shuttle S is'piclred from the auxiliary box 24. I

The parts thus far described are substantially as shown in the prior application of Ryon above noted and form no part of my present invention.

An important part of invention, however; relates to the provision of a binder 40 pivoted at 41 (Fig. 3) on a bracket 42 fixed to the lay end'25. A spring 43 is also mounted in fixed positionandyieldingly presses the binder against the frontside of the shuttle. A guide or stop 44 isfixed to .the rear part of thela-y end, as ind cated in Fig. 5 and is arched upward .to permit verricel movement at the shuttle boxes. The

tained by the use of a single binder mounted in fixed vertical position and cooperating with the running shuttle whether in the regular shuttle box 23 or in the auxiliary shuttle box 24. As only a single binder is used, the pressure of the binder is uniform and the shuttle is boxed in the same position, whether in the auxiliary or the regular shuttle box. Furthermore, reference to the Ryon application will show that the use of a single fixed binder enables me to omit many movable parts therein shown and to substantially simplify the transfer mechanism.

The shuttle carrier or slide 38 (Fig. 1) is connected to the upper end of a lever mounted on a fixed pivot 51 and connected by a link 52 and give-way connection 53 to a cam lever 54 pivoted at 55 to a bracket secured to the frame 20. A cam roll 56 on the lever 54 is engaged by a cam 57 rotatable on a stud or shaft 58. The cam 57 is loose or the shaft 58 but is fixed to a large gear 59 engaged by a pinion 60 (Fig. 7) loose on the cam shaft 34.

The hub of the cam 33 (Fig. 7) on the shaft 34 is provided with a clutch disc 61 (Fig. 8) having a notch or recess 62 adapted to receive a'stud 63 (Fig. 7) in the adjacent face of the pinion 60. The pinion 60.

has a grooved hub 64 which receives the forked end of a lever 65 pivoted at 66 on a bracket secured to the loom frame. A light spring 67 (Fig. 2) normally holds the pinion 63 in outward position against the end of a heavier coil spring 68 loose on the cam shaft 34. A grooved collar 69 is slidable on the end of the shaft 34 and is engaged by the forked upper end of a bell crank 70 (Fig. 11) mounted on a fixed pivot 71 and having its lower offset end 72 projected into the path of a rearwardly extending arm 73 (Figs. 1 and'2) fixed to the lifter lever 28.

When the lifter lever 28 is raised upon indication of shuttle transfer, the arm 73 is depressed and the bell crank 70 is thus moved to compress the coil spring 68 and force the pin 63 against the side of the continuously moving clutch disc 61. lVhen the pin 63 is aligned with the notch or recess 62, the pin is forced into the notch and the pinion 60 then revolves with the cam 33 and thus actuates the gear 59 and cam 57. In this position the shuttle holder 38 receives a spare shuttle S from the magazine 37 and is thereafter moved rearward to the normal sion 76 in the cam 76 when the link is in its lowest position and acts to yieldingly hold the gear 59 and parts associated therewith in normal inoperative position when the pinion 60 is released from the drivlng dlsc 61.

This release is accomplished by a cam lug 79 on the side of the gear 59 which engages an upwardly extending projection 80 on the forked lever 65. The cam lug 79engages the projection shown in Fig. 1, the

momentum of the parts and the depression 9 in the cam 76 causing the gear 59 to advance slightly beyond the position in which it engages the projection 80. The driving and control mechanism for the gear 59 is not claimed herein as it forms a part of the subject matter of the co-pending application of A. J. Chevrette, Serial No. 598,123, filed Oct. 31, 1922. g

It will be noted that the gear 59 and cams 57 and 76 remain at rest after their return to normal position and have no fur ther movement until after an indication of further weft exhaustion. This construction has important advantages over the construction heretofore used in which parts of the actuating mechanism for the shuttle holder 38 were continuously moved by acam on the cam shaft 34.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is 1. In a shuttle changing loom, a lay, driving mechanism therefor, a pair of shuttle boxes vertically movable thereon, a shuttle magazine, a shuttle holder normally maintained in rearward transfer position, a lever connected to said shuttle holder, and actuating means including a member effective on rotation thereof to move said lever and reciprocate said holder to remove said shuttle.

from said magazine and to present said shuttle in transfer position, said rotatable member of said actuating means being normally disconnected from the loom driving mechanism and being normally at rest, but being operatively connect-ed to said driving mechanism immediately after each shuttle transfer.

2. In a shuttle changing loom, a lay, a pair of shuttle boxes vertically movable thereon, a shuttle magazine, a shuttle holder normally maintained in rearward transfer position, and actuating means to reciprocate said holder to remove a shuttle from said magazine and to present-said shuttle in transfer position, said mechanism including a cam normally at rest, and means to rotate said cam after indication of transfer.

3. In a shuttle changing loom, a lay, a pair of shuttle boxes vertically movable thereon, a shuttle magazine, a shuttle holder normally maintained in rearward transfer position, and actuating means to reciprocate said holder to remove a shuttle from said magazine and to present said shuttle in transfer position, said means including a cam normally at rest, driving mechanism therefor rendered operative only upon indication of transfer, a cam lever, and a give-way connection between said lever and said shuttle holder.

In testimony whereof I have hereunto affixed my signature.

RICHARD GREENLEAF TURNER. 

